28534073 has 8 divisors (see below), whose sum is σ = 29314656. Its totient is φ = 27757600.

The previous prime is 28534061. The next prime is 28534081. The reversal of 28534073 is 37043582.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28534073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28534003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17378 + ... + 18948.

It is an arithmetic number, because the mean of its divisors is an integer number (3664332).

Almost surely, 2^28534073 is an apocalyptic number.

It is an amenable number.

28534073 is a deficient number, since it is larger than the sum of its proper divisors (780583).

28534073 is a wasteful number, since it uses less digits than its factorization.

28534073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 28534073 is about 5341.7294016077. The cubic root of 28534073 is about 305.5774173131.

The spelling of 28534073 in words is "twenty-eight million, five hundred thirty-four thousand, seventy-three".